Knowledge HUB
Insights from battery experts
Explore the latest trends, research papers, blog posts and more. Join us as we cover hot topics, debate the future of tech and share trending stories.
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Insights
Article
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October 9, 2024
Customer Stories: BayWa r.e.
Julian Gerstner from BayWa r.e. shares his learnings for a successful battery storage operation. Julian leads grid scale storage projects and explains why companies need to 'think BESS' to champion the renewable energy transition.
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September 16, 2024
Case Study: Epiroc’s Journey to an All-Electric Fleet
This case study highlights Epiroc’s strategic transition to an all-electric fleet. By using TWAICE’s Premium Battery Simulation Models, Epiroc confidently selected the best battery cells, accelerated development time, and enhanced customer experience.
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September 3, 2024
Tariff Section 301 - What U.S. Companies Need To Know
The article examines the impact of U.S. Section 301 laws on the battery industry, focusing on Lithium-Iron Phosphate (LFP) and Nickel Manganese Cobalt (NMC) batteries. It highlights recent tariff changes, their implications for U.S. companies, and strategic decisions businesses must make. Battery simulation models are an important tool in navigating these changes.
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August 1, 2024
Energy storage: an overview of our content
Get an overview of our energy content, covering topics like safety and warranty in the energy sector, deployment and operations of energy storage systems, and general use cases of battery energy storage systems.
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August 1, 2024
Battery development: an overview of our content
Find an overview of topics related to battery development in this article. Read about battery technologies, the battery industry, and battery simulation models.
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August 1, 2024
Electric vehicles and fleet management: an overview of our content
Batteries are the future of mobility. Want to learn more about electric vehicles and their batteries? We have got you covered on topics like battery safety, operation and management of batteries, battery development, and residual values. Get an overview of our content pieces.
Whitepaper
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January 20, 2022
Streamlining e-bus warranty discussions
The automotive sector’s transition to green mobility is challenging the bus operators across the world. That was the case of a major operator of electric buses in the Netherlands, who reached out to ViriCiti and TWAICE regarding our Battery Health Solution to integrate data-driven decision making focused on batteries, to avoid timely and costly warranty discussions.
Whitepaper
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June 3, 2020
The Power of Signalling
What is the potential impact of Battery Health Reports (BHR) on remarketing success of the battery electric vehicle (BEV)? Besides age and mileage, driver profile has a major impact on how long a battery lasts. In the absence of documentation of how a driver has treated the battery, residual value formation remains below its full potential.
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Research Paper
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September 17, 2024
Modeling Particle Versus SEI Cracking in Lithium-Ion Battery Degradation
This work identifies and systematically compares three different SEI interaction theories, and applies them to experimental degradation data from a commercial lithium-ion cell. It shows that SEI delamination without any cracking of the active particles, and SEI microcracking, where cycling only affects SEI growth during the cycle itself, are both unlikely candidates.
Research Paper
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June 11, 2024
Insights from EPRI's BESS failure incident database
This report is intended to address the failure mode analysis gap by developing a classification system that is practical for both technical and non-technical stakeholders.
Research Paper
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March 11, 2024
Non-destructive electrode potential and open-circuit voltage aging estimation for lithium-ion batteries
In this publication we extend a state-of-the-art electrode open circuit potential model for blend electrodes and inhomogeneous lithiation. We introduce a bi-level optimization algorithm to estimate the open parameters of the electrode model using measurements conducted on the full-cell level with state-of-the-art testing equipment.
Research Paper
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December 8, 2023
Mechanistic cycle aging model for the open-circuit voltage curve of lithium-ion batteries
Cycling lithium-ion batteries causes capacity fade, but also changes the shape of the open-circuit voltage (OCV) curve, due to loss of active material (LAM) and loss of lithium inventory (LLI). To model this change, we recently proposed a novel empirical calendar aging model that is parameterized on component states of health (s) instead of capacity fade only.
Research Paper
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June 9, 2023
Mechanistic calendar aging model for lithium-ion batteries
In this work we present a novel mechanistic calendar aging model for a commercial lithium-ion cell with NCA cathode and silicon-graphite anode. The mechanistic calendar aging model is a semi-empirical aging model that is parameterized on component states of health, instead of capacity.
Research Paper
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April 12, 2023
Measurement Approaches for Thermal Impedance Spectroscopy of Li-ion Batteries
Battery performance, lifetime and safety are highly dependent on temperature. With the recent high demand for power capabilities, heat management has become increasingly relevant.